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Event-by-event charged-neutral fluctuations in Pb plus Pb collisions at 158 A GeV

Aggarwal, M. M.; Ahammed, Z.; Angelis, A. L. S.; Antonenko, V.; Arefiev, V.; Astakhov, V.; Avdeitchikov, V.; Awes, T. C.; Baba, P. V. K. S. and Badyal, S. K., et al. (2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 701(3). p.300-305
Abstract
Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (eta-phi)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the A Delta eta-Delta phi region. (C) 2011... (More)
Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (eta-phi)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the A Delta eta-Delta phi region. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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subject
keywords
The WA98 experiment, Photon multiplicity detector, Disoriented chiral, condensate, Silicon pad multiplicity detector, Sliding window method, Charged-neutral fluctuations
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
701
issue
3
pages
300 - 305
publisher
Elsevier
external identifiers
  • wos:000293487600004
  • scopus:79960354981
ISSN
0370-2693
DOI
10.1016/j.physletb.2011.06.003
language
English
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yes
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12452e4c-1ae2-4d31-a981-d147dd574d54 (old id 2161643)
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2011-09-21 11:33:57
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2017-01-01 06:32:27
@article{12452e4c-1ae2-4d31-a981-d147dd574d54,
  abstract     = {Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (eta-phi)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the A Delta eta-Delta phi region. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Aggarwal, M. M. and Ahammed, Z. and Angelis, A. L. S. and Antonenko, V. and Arefiev, V. and Astakhov, V. and Avdeitchikov, V. and Awes, T. C. and Baba, P. V. K. S. and Badyal, S. K. and Bathe, S. and Batiounia, B. and Bernier, T. and Bhalla, K. B. and Bhatia, V. S. and Blume, C. and Bucher, D. and Buesching, H. and Carlén, Lars and Chattopadhyay, S. and Decowski, M. P. and Delagrange, H. and Donni, P. and Majumdar, M. R. Dutta and El Chenawi, K. and Dubey, A. K. and Enosawa, K. and Fokin, S. and Frolov, V. and Ganti, M. S. and Garpman, Sten and Gavrishchuk, O. and Geurts, F. J. M. and Ghosh, T. K. and Glasow, R. and Gupta, R. and Guskov, B. and Gustafsson, Hans-Åke and Gutbrod, H. H. and Hrivnacova, I. and Ippolitov, M. and Kalechofsky, H. and Kamermans, R. and Karadjev, K. and Karpios, K. and Kolb, B. W. and Kosarev, I. and Koutcheryaev, I. and Kugler, A. and Kulinich, P. and Kurata, M. and Lebedev, A. and Liu, H. and Lohner, H. and Luquin, L. and Mahapatra, D. P. and Manko, V. and Martin, M. and Martinez, G. and Maximov, A. and Miake, Y. and Mishra, G. C. and Mohanty, B. and Mora, M. -J. and Morrison, D. and Moukhanova, T. and Mukhopadhyay, D. S. and Naef, H. and Nandi, B. K. and Nayak, S. K. and Nayak, T. K. and Nianine, A. and Nikitine, V. and Nikolaev, S. and Nilsson, P and Nishimura, S. and Nomokonov, P. and Nystrand, Joakim and Oskarsson, Anders and Otterlund, Ingvar and Pavliouk, S. and Peitzmann, T. and Peressounko, D. and Petracek, V. and Pinanaud, W. and Plasil, F. and Purschke, M. L. and Rak, J. and Raniwala, R. and Raniwala, S. and Rao, N. K. and Retiere, F. and Reygers, K. and Roland, G. and Rosselet, L. and Roufanov, I. and Roy, C. and Rubio, J. M. and Sambyal, S. S. and Santo, R. and Sato, S. and Schlagheck, H. and Schmidt, H. -R. and Schutz, Y. and Shabratova, G. and Shah, T. H. and Sibiriak, I. and Siemiarczuk, T. and Silvermyr, David and Sinha, B. C. and Slavine, N. and Söderström, Kaj and Sood, G. and Sorensen, S. P. and Stankus, P. and Stefanek, G. and Steinberg, P. and Stenlund, Evert and Sumbera, M. and Svensson, T and Tsvetkov, A. and Tykarski, L. and Pijll, E. C. V. D. and Eijndhoven, N. V. and Nieuwenhuizen, G. J. V. and Vinogradov, A. and Viyogi, Y. P. and Vodopianov, A. and Voeroes, S. and Wyslouch, B. and Young, G. R.},
  issn         = {0370-2693},
  keyword      = {The WA98 experiment,Photon multiplicity detector,Disoriented chiral,condensate,Silicon pad multiplicity detector,Sliding window method,Charged-neutral fluctuations},
  language     = {eng},
  number       = {3},
  pages        = {300--305},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Event-by-event charged-neutral fluctuations in Pb plus Pb collisions at 158 A GeV},
  url          = {http://dx.doi.org/10.1016/j.physletb.2011.06.003},
  volume       = {701},
  year         = {2011},
}